The question is Estimate.

=7.8 * 307

Choose 1

a 24

b 240

c 2400

d24000

To estimate round each number to the closest whole number

7.8 would round to 8

307 would round to 300

8 x 300 = 2400

The answer would be c 2400

Area of CMB = 12

Area of ABC = 24

Step-by-step explanation:

IDK how to prove it exactly but using logic I will go through the steps to findign the answer.

if DM is the midpoint of BC, it splits BC in half which also splites the area of BMC into two equal parts.

If the area of BMD = 6 and CMB = BMD * 2 then CMB = 6 * 2 = 12

Area of CMB = 12

If BM is the midpoint of AC, it splits AC in half which also splits the area into two equal parts.

If the area of CMB = 12 and ABC = CMB * 2 then ABC = 12 * 2 = 24

Area of ABC = 24